Translation:

3. As well as (to confer all these benefits upon) others of them who have not already joined them: and He is Exalted in Might Wise.

Notes (Tafseer)

5455. Others of them: i.e., others than those among whom the holy Prophet came as a messenger. In other words his Message is for his Arab people and his non-Arab contemporaries as well as those who live in other ages, and have no personal contact with him or his Companions.